If returns of S&P 500 stocks are normally distributed, what range of returns would you expect to see 95% of the time? Base your answer on the information below. Average Return Standard Deviation of returns Small Stocks 19.55% 38.03% S&P 500 11.57% 19.85% Corporate Bonds 6.97% 6.18% T-Bills 4.18% 3.39% % and %. (Round to two decimal places and put the lower The 95% prediction interval of the S&P500 is between number first.)